Unity C# 子线程Action发送到主线程执行

https://mp.csdn.net/postedit/80261275

今天去面试..面试官竟然说子线程的Action不能发送到主线程执行... ...废话不说上干货

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using System;

using System.Threading;

public class ActionDemo : MonoBehaviour {

    public static List> actionlist = new List>();

    void Start()

    {

        actionlist.Add( curname => {

            Debug.Log ("action1 :" + curname);

        });

        actionlist.Add( curname => {

            Debug.Log ("action2 :" + curname);

        });

        //开启子线程

        Thread th = new Thread(ThreadChild);

        th.Start();

    }

    static void ThreadChild()

    {

        //循环三次 关闭线程,养成良好习惯

        for (int i = 0; i < 3; i++) {

            //锁住保证线程安全

            lock(actionlist){

                actionlist.Add( curname => {

                    //这里填子线程中 想去主线程调用的代码 ,例如改变UI

                    Debug.Log ("ThreadChild :" + curname);

                });

                Thread.Sleep(1000);

            }

        }

    }

    void Update(){

        //遍历action 在Update中调用action自然是主线程调用

        for (int i = 0; i < actionlist.Count; i++) {

            ActionDemo.actionlist [i] (Time.time+"");

        }

        actionlist.Clear();

    }

}